package Array;

public class Demo08 {
    public static void main(String[] args) {
        //创建一个二维数组 0代表没有棋子，1代表白棋，2代表黑棋
        int[][] array1 = new int[11][11];
        array1[1][2]=1;
        array1[2][3]=2;
        //输出原始的数组
        System.out.println("输出原始的数组");
        for (int[] ints:array1){
            for (int anInt:ints)
            System.out.print(anInt+"\t");
            System.out.println();
        }
        System.out.println("=========================================");
        //转换稀疏数组
        //获取有效值的个数
        int sum = 0;
        for (int i = 0; i < 11; i++) {
            for (int j = 0; j < 11; j++) {
                if(array1[i][j]!=0){
                    sum++;
                }
            }
        }
        System.out.println("有效值的个数："+sum);

        //创建稀疏数组
        int[][] array2 = new int[sum+1][3];
        array2[0][0]=11;
        array2[0][1]=11;
        array2[0][2]=sum;
        //遍历二维数组，将非零的值，存放稀疏数组中
        int count=0;
        for (int i = 0; i < array1.length; i++) {
            for (int j = 0; j < array1[i].length; j++) {
                if (array1[i][j]!=0){
                    count++;
                    array2[count][0]=i;
                    array2[count][1]=j;
                    array2[count][2]=array1[i][j];
                }
            }

        }
        //输出稀疏数组
        System.out.println("稀疏数组");
        for (int i = 0; i < array2.length; i++) {
            System.out.println(array2[i][0]+"\t"
                    +array2[i][1]+"\t"
                    +array2[i][2]+"\t");
        }
        System.out.println("=========================================");

        //还原稀疏数组

        //1，读取稀疏数组
        System.out.println("还原");
        int[][] array3 = new int[array2[0][0]][array2[0][1]];

        //2，给其中的元素还原他的值
        for (int i = 1; i < array2.length; i++) {
            array3[array2[i][0]][array2[i][1]]=array2[i][2];
        }
        //3，打印还原
        System.out.println("输出还原的数组");

        for(int[] ints:array1){
            for (int anInt : ints){
                System.out.print(anInt+"\t");
            }
            System.out.println();
        }


    }
}
